Chang Lima Automation Co., Ltd.
specializes in repairing various types of frequency converters, servo systems, and CNC systems, with an excellent and experienced team.
Frequency converter maintenance fault overcurrent
Possible cause of the fault is output short circuit, the motor is too big, and the output stage is faulty
Corresponding measures are to eliminate the short circuit and connect a small motor when the output fails
Motor Power line ground fault
Possible causes of failure are in the motor power line, in the inverter, and in the motor
Corresponding measures to eliminate ground faults
Brake chopper
Possible causes of failure Regenerative power Too large, the braking resistor line is interrupted, the braking resistor line is short-circuited, the braking resistor impedance is too high, the braking chopper is faulty
Corresponding measures are to extend the deceleration ramp, check the braking resistor line, and check the braking resistor technical data , the brake chopper fails
Overvoltage
The possible cause of the failure is that the DC side voltage is too high
Corresponding measures extend the deceleration ramp, check the braking resistor circuit, and check the braking resistor technical data
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Kunshan German SEW driver inverter servo motor repair